Table 4.

Univariate and multivariate analysis using cox regression model: Hazard ratio (HR), 95% confidence intervals (95% CI)

Variables		Univariate analysis			Multivariate analysis
		HR	95% CI	p value	HR	95% CI	p value
DM Status	DM	0.817	0.541–1.234	0.336
	Non-DM	1
Sex	Male	1.013	0.671–1.530	0.95
	Female	1
Site of Primary Tumour	Head	0.549	0.363–0.830	0.004	1.470	0.658–3.286	0.348
	Body	2.397	1.450–3.962	0.001	2.486	1.007–6.140	0.048
	Tail	3.212	1.692–6.098	0.000	4.213	1.440–12.330	0.009
	Unknown	0.602	0.302–1.198	0.148
Stage at PC Diagnosis	Stage 1	0.794	0.250–2.518	0.695
	Stage 2	0.946	0.586–1.528	0.82
	Stage 3	0.239	0.133–0.428	0.000	0.281	0.074–1.058	0.061
	Stage 4	3.153	2.082–4.773	0.000	1.163	0.348–3.886	0.807
	Unknown	1.230	0.386–3.921	0.727
PC Treatments	Surgery	0.601	0.373–0.971	0.038	1.278	0.670–2.438	0.456
	Chemotherapy	0.298	0.189–0.471	0.000	0.484	0.273–0.858	0.013
	Radiotherapy	1.022	0.646–1.618	0.925
DM Onset	Pre PCd	1.030	0.647–1.641	0.901
	At PCd	1.454	0.668–3.163	0.345
	Post PCd	0.501	0.251–1.002	0.051